Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Laser Pro Shop



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 07-01-2008, 05:52 PM #385
scopeguy20's Avatar
Class 3B Laser
 
Join Date: Jun 2007
Location: Sunny S. California WOOT!
Posts: 3,447
Rep Power: 252
scopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond repute
scopeguy20 scopeguy20 is offline
Class 3B Laser
scopeguy20's Avatar
 
Join Date: Jun 2007
Location: Sunny S. California WOOT!
Posts: 3,447
Rep Power: 252
scopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond reputescopeguy20 has a reputation beyond repute
Default Re: FS: >90mW Blu-Rays, two models: OPEN

And once again, it just keeps getting better! I don't know if the driver is abel to do it, but I might want to adjust one to double output. I'll probably wait for the lens first though. Glass and 405 AR coating may be plenty! ;D 8-)


__________________
Bluray 140 mW, DJR & New FAV! 8X >500 mW Cree! Made by IgorT Flaminpyro BR &
Red Burner on board, need more ~650 nm 140 mW
8 red Hene's 632.8 nm 2-3mW green HeNe & T/Y to rhd 635nm ~400mW
Rigel SOLD! 3-4 mW I Love it PGL III 593.5nm doing >20 mW! SOLD!
Several Green lasers, EVO PRO Peak ~160 mW & Spyder I Peak 295 mW are my new green favorites!
LG Aquarius -10 & Viasho 473 nm peak ~29 mW WL S3 >60 mW peak 112mW SOLD!
Awesome rhd 451nm 2.1 W SOLD! & 445 >2W by DTR! , Yobresal 1.2W Cree & pen 445 w/ star-cap doing 750 mW!! 500mW 445nm Dorcy Jr. Thanks to Flaminpyro!
Awesome Osram 450nm pocket mini from DTR does about 750mW!

Big T/Y! to builders: IgorT, DTR, john lawson, jayrob, IgorT, whatsupadrian, daguin, and all!
Spiro toy mod w/ side aperture for any pointer Spiro toy in Violet Spiro by yobresal too!
Laser sleds/ diodes sold so far 1180+ A few LPC-826 diodes F.S. $12 ea.


scopeguy20 is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 07-01-2008, 06:25 PM #386
Class 2M Laser
 
Join Date: Apr 2008
Location: Sweden
Posts: 521
Rep Power: 14
lazerguy is a jewel in the roughlazerguy is a jewel in the roughlazerguy is a jewel in the rough
lazerguy lazerguy is offline
Class 2M Laser
 
Join Date: Apr 2008
Location: Sweden
Posts: 521
Rep Power: 14
lazerguy is a jewel in the roughlazerguy is a jewel in the roughlazerguy is a jewel in the rough
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Yeah, I'm also pretty excited about this, and I am eagerly waiting for the special lens. I am also considering to send mine back to Igor so that he can raise the current. ;D
lazerguy is offline   Reply With Quote
Old 07-01-2008, 09:06 PM #387
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: FS: >90mW Blu-Rays, two models: OPEN

The driver is capable of much more than just double current. It's highly efficient, so very little power gets converted into heat. I left one on for an hour at 190mA, and the regulator didn't get hot. It could even do twice as much and more.. The heatsink handled the heat from the diode perfectly as well. It hardly got warm. But the diode is not capable of that. Some might be able to take 190mA, but you never know when it'll just die..

At the moment i am testing 170mA, and the two lasers at this current would seem to be doing fine for now.


But i can't risk setting your lasers higher just yet. I want to give you warranty.. It'll take some more testing, to find out what is safe. But i think 140-150mW might be possible even after a plastic lens.

With the glass, who knows..

There is one thing i do know. The AR coating on the custom lens will not only make the lasers more powerful, it will also make the higher powers safer for the lasers, because light will not be reflected back into the diode.. A diode can only take so much optical power, and with clear lenses or lenses with wrong coatings, the light reflected back is added to the light coming out, which can in some cases kill the diode, that is pushed close to the limit.

Some people, who are willing to take the same risk as now, will even be able to double whatever the power increase will be this way.
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 07-02-2008, 12:06 PM #388
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Some people asked me how big/small the new model laser is.

It's still just as small as the original laser was supposed to be (before the supplier screwup), but it's a little more massive. I love how heavy it feels, and just looking at it is a pleasure. Pictures do not do it justice.

The entire laser body (with the tailcap) is 97mm long, and 20.5mm diameter at the head. This comes to around 3.8 inches long, and 0.8 inches diameter. With the focusing nut it comes to 99mm or 3.88 inches.

The body is quite massive aluminum, and acts as a part of the heatsink. The main heatsink is the module in the head itself. This module is 27mm long and 18mm dia, and contains everything.

Even tho it is this tiny it uses a miniature (13x9mm) constant current boost driver, and it is capable of dissipating more than enough heat. I have one running at 170mA, and it barelly gets warm after many minutes of picture taking. I have to touch it to my lips, for it to feel luke warm. When i left one on for an hour at 190mA, it got warm to the touch with lips, but it never gets hot. In the hand, it feels like body temperature. The driver doesn't heat up either, because of the very high efficiency..

Both the heat sinking and the driver are capable of much more than supporting a blu ray. It could even support an open can red, but with a duty cycle.


Here are some pictures of the new model in my hand, for size reference.
Attached Thumbnails
FS: >110mW PHR, >140mW 4x & >170mW 6x Blu-Rays-new_host_laser_size.jpg  
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 07-02-2008, 09:59 PM #389
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: FS: >90mW Blu-Rays, two models: OPEN

I finished shipping out the second batch (tracking numbers sent), and i sent everyone from the third batch an email.

If someone didn't get an email with order details, please write me asap to sort out the order details. The third batch will be finished in 2-3 days.
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 07-02-2008, 10:12 PM #390
daguin's Avatar
Super Moderator
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
daguin daguin is offline
Super Moderator
daguin's Avatar
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Quote:
Originally Posted by IgorT
I finished shipping out the second batch, and i sent everyone from the third batch an email.

If someone didn't get an email with order details, please write me asap. The third batch will be finished in 2-3 days.
How would someone know if they were in the third batch and therefore looking for an email?

Peace,
dave
__________________
How To Get Along In and Be Accepted in the Forum

If you got some value out of reading this forum, how about donating $2 to keep it going?
Click Here to donate

Love all, trust a few, do wrong to none.
-William Shakespeare
daguin is offline   Reply With Quote
Old 07-02-2008, 10:20 PM #391
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Because i told them..

Besides, it goes for everyone. They should either have gotten a tracking number or an email with questions. So if someone didn't get an email, they should write me.

If you're asking for yourself, yours is a special order with special requirements.. The batches are when i make 6-7 heatsink modules simultaneously.
But i am also preparing the pens together with the third batch. I managed to make another dozen of drivers yesterday, so the hardest part is behind me.



P.S. I know you want a bizzarelly high current, so i hooked up a dead diode to a driver at 170mA, and i will put it into the pen, to see how the heatsinking is. I think 160mA should be possible. But it still can't compare to a massive aluminum heatsink.

A dead diode also dissipates more heat, so it's a good experiment.
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 07-02-2008, 10:51 PM #392
daguin's Avatar
Super Moderator
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
daguin daguin is offline
Super Moderator
daguin's Avatar
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Quote:
Originally Posted by IgorT
Because i told them..
Besides, it goes for everyone. They should either have gotten a tracking number or an email with questions. So if someone didn't get an email, they should write me.

If you're asking for yourself, yours is a special order with special requirements.. The batches are when i make 6-7 heatsink modules simultaneously.
But i am also preparing the pens together with the third batch. I managed to make another dozen of drivers yesterday, so the hardest part is behind me.
P.S. I know you want a bizzarelly high current, so i hooked up a dead diode to a driver at 170mA, and i will put it into the pen, to see how the heatsinking is. I think 160mA should be possible. But it still can't compare to a massive aluminum heatsink.
A dead diode also dissipates more heat, so it's a good experiment.

I missed the "You'll get one or the other" message. No problem. I would NEVER hurry an experiment. I am in no hurry. I'm not going anywhere. I'm burning one (with large heat sink) at 170mW after aiXiz acrylic now.

Oops! Spoke too soon. That one just went dark as I was checking it to see if the output was what I remembered from it. I may actually have to buy another sled or two It died without noticeable heating. It's starting to look like I will have to keep them under 180mA input (with good heat sink) for them to live. I've got two others at 180mA input still burning. We will see. . . .

Peace,
dave
__________________
How To Get Along In and Be Accepted in the Forum

If you got some value out of reading this forum, how about donating $2 to keep it going?
Click Here to donate

Love all, trust a few, do wrong to none.
-William Shakespeare
daguin is offline   Reply With Quote
Old 07-02-2008, 11:21 PM #393
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Timbojames Timbojames is offline
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Default Re: FS: >90mW Blu-Rays, two models: OPEN

so it looks like the heat that instantly appears is more dangerous then the heat that appears when more heat appears after a while. ( from low to very high to high)
Timbojames is offline   Reply With Quote
Old 07-02-2008, 11:23 PM #394
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Timbojames Timbojames is offline
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Default Re: FS: >90mW Blu-Rays, two models: OPEN

I mean that the heat that is created in the first second is created to fast and can't be dissipated by the heatsink

ModifY:

So what I mean is that the long time "turn on's" shouldn't be a probleme for the lasers. The problem should be in the first second the laser is turned on. The first heat can't dissipate to the heatsink immediately, so the diode becomes to hot.

P.s. this is just a theorie of a n00b, I would just like some reactions on this
Timbojames is offline   Reply With Quote
Old 07-02-2008, 11:28 PM #395
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Oh man.. Was this the 190mA one? Looks like this really is too much for them. And the reflections from wrong lenses make it worse.

I already killed two at 190mA.. But the two 170mA ones are doing fine for now - but i'm almost scared to say this...
I really hope this turns out to be a safe current tho.

I managed to break the leg off one diode, so i'm thinking i should hook that one up to 170mA and let it run. And if it survives a few days, maybe change this to 180mA...

Heat is not that much of a problem with these.. The two i lost were not hot. Not even the one i left on for an hour - it was just warm. It's the current and the optical flux at the diode, part of which comes from reflections from the lenses.
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 07-02-2008, 11:31 PM #396
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Timbojames Timbojames is offline
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Default Re: FS: >90mW Blu-Rays, two models: OPEN

So Igor, the question I am asking to you: Did the diodes died in the first few seconds you turned the laser on or did it happen in a couple of minutes?
Timbojames is offline   Reply With Quote
Old 07-02-2008, 11:45 PM #397
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Tim...

Answer your email..
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 07-02-2008, 11:46 PM #398
Class 1 Laser
 
Join Date: Apr 2009
Posts: 98
Rep Power: 9
LikeitBright will become famous soon enough
LikeitBright LikeitBright is offline
Class 1 Laser
 
Join Date: Apr 2009
Posts: 98
Rep Power: 9
LikeitBright will become famous soon enough
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Quote:
Originally Posted by IgorT
Oh man.. Was this the 190mA one? Looks like this really is too much for them. And the reflections from wrong lenses make it worse.

I already killed two at 190mA.. But the two 170mA ones are doing fine for now - but i'm almost scared to say this...
I really hope this turns out to be a safe current tho.

I managed to break the leg off one diode, so i'm thinking i should hook that one up to 170mA and let it run. And if it survives a few days, maybe change this to 180mA...

Heat is not that much of a problem with these.. The two i lost were not hot. Not even the one i left on for an hour - it was just warm. It's the current and the optical flux at the diode, part of which comes from reflections from the lenses.
Yes, unless you are really on a budget I would always go with an anti-reflection coated collimating lens for 405nm laser diodes. *They seem to be quite fragile when it comes to back reflections. *I killed a 405nm diode with a back reflection just by using a 650nm coated lens. Some 650nm AR coatings have higher reflection at 405nm than the equivalent uncoated lens!
LikeitBright is offline   Reply With Quote
Old 07-02-2008, 11:56 PM #399
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Quote:
Originally Posted by Timbojames
So Igor, the question I am asking to you: Did the diodes died in the first few seconds you turned the laser on or did it happen in a couple of minutes?
I had two set at 190mA. One worked nicelly for long enough, that i thought it will make it, but then i turned it on, and it blinked and went off.
The other one i also set to 190mA, and left it on in front of the meter for an hour. That one died sometime during that hour. It was warm, but not hot.


But this has nothing to do with heat. There are many factors, that can lead to the death of a diode. It can be too much current or too much optical power - the diode kills itself with all the power it is putting out. And uncoated lenses or lenses with wrong coatings reflect some light back into the diode, and increase the optical power on the die. When a diode is pushed close to the limit of what it can do, the reflections from the wrong lens can be enough to push it over the edge.
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 07-03-2008, 12:07 AM #400
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Timbojames Timbojames is offline
Member
 
Join Date: May 2008
Posts: 49
Rep Power: 0
Timbojames is on a distinguished road
Default Re: FS: >90mW Blu-Rays, two models: OPEN

Ok, it was just the idea that you could have a peak of heat in the first few seconds that could have killed the diodes at a high currents, but by looking at Igor's comment that isn't the problem.

Greetz,
Tim
Timbojames is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 11:13 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC